from machine import Pin, I2C
from time import sleep
import dht
from ht16k33 import ht16k33_seg

sensor = dht.DHT11(Pin(26))
i2c = I2C(sda=Pin(18), scl=Pin(19), freq=100000)
d = ht16k33_seg.Seg7x4(i2c)
button = Pin(5, Pin.IN)
toggle = True
prev = 0

while True:
  cur = button.value()
  if cur != prev:
    toggle = not toggle
  try:
    sleep(2)
    sensor.measure()
    if toggle:
      output = sensor.temperature()
    else:
      output = sensor.humidity()
    d.fill(0)
    d.print(output)

  except OSError as e:
    print('Failed to read sensor.')